There are total 5 hours or 300 minutes from 4pm to 9pm. In words, this duration is equal to five hours or three hundred minutes.
How many hours from
| 1AM to 5AM | 3AM to 7PM | 3AM to 3PM |
| 7PM to 9PM | 3AM to 3PM | 5PM to 5AM |
| 3PM to 8PM | 5AM to 9AM | 6AM to 5AM |
| 10PM to 11PM | 1AM to 12PM | 11PM to 4PM |
| 4AM to 10AM | 7AM to 6AM | 9AM to 10PM |
| 3AM to 5PM | 10PM to 7AM | 2AM to 2PM |